json-tools: cli for generating and filtering json

Interacting with JSON-based APIs from the command line can be
difficult, and OpenStack is filled with REST APIs that consume or
produce JSON. I’ve just put pair of tools for generating and
filtering JSON on the command line, called collectively
json-tools.

Both make use of the Python dpath module to populate or filter
JSON objects.

The jsong command generates JSON on stdout. You provide /-delimited paths
on the command line to represent the JSON structure. For example, if
you run: